He'd booked a double sleeper cabin for them that night. When she'd paid him for the ticket there had been no mistake or misunderstanding, she saw exactly what he'd got for them. The thought stayed with him all that afternoon. They'd slung their luggage in there as soon as they got onboard, his shoulder bag, her rucksack. The cabin was tiny, its fittings as compact as modern design allowed.

All the time they spent talking in the main coach he knew that she knew they'd be going back there after dinner. They'd strip off in the confined space, then climb into the low bunk together. The prospect was highly arousing. It would be almost like their first time. Last night, from what he could recall, had involved little passion and hadn't lasted long anyway, some perfunctory fumbling brought to a swift climax. First-time sex was always hot. And here on the train it was inevitable, which added that extra twinge of excitement as he spent the afternoon looking at her.

They went to the restaurant as the train slid out of Paris. Joona ordered a bottle of red wine. Lawrence had two glasses; she finished the rest and ordered another. Her conversation, which had arrived at the global uniculture's contamination of Africa, allowed less and less opportunity for him to say anything. Eventually it became a bitter rant. Lawrence didn't have any of the second bottle. Joona ordered a brandy for herself, which she finished before they left for their sleeper cabin.

When they got to it, they found the conditioning was faulty, leaving the little room chilly. Joona swayed about, looking at him with a lack of certainty in complete contrast to her usual attitude. She gave him a brief who-cares grin and started to pull her clothes off. It was Lawrence's turn to hesitate.

"Look," he said reluctantly. "You've had a lot to drink."

"I can handle it. This is nothing." She got the sweatshirt off over her head, then put an arm out to steady herself as she undid her jeans.

"I'm sure. I'm just saying, we don't have to do anything tonight."

"Yes, we do." Her grin widened into something close to defiance as she slipped her briefs down her legs. "Don't you get it? We have to. We must." She began kissing him. The smell and residual taste of the wine was off-putting. He put his arms around her in a mechanical fashion, trying to respond with the same intensity.

"We're building a bridge," she mumbled. "The two of us, two worlds joining. That means we're human after all."

He wanted to ask what she thought she meant. But he was busy freeing his own shirt, and she'd sat down heavily on the edge of the bunk. The cold air didn't help his mood, it actually raised goose bumps on his skin. He climbed into the bunk beside her, quickly pulling the thin quilt over the pair of them.

She started kissing him again, ranging over his face and neck. A hand closed round his cock. One elbow rested uncomfortably on his sternum. What she must have intended as a suggestive caress felt more like an irritable tickle down the side of his ribs. The whole event was completely unerotic. He couldn't believe it; not after he'd spent most of the day anticipating this moment.

Finally he managed to roll the pair of them around so she lay underneath him. He could barely keep his erection going; to help he had to keep thinking about a couple of the girls from the Strip last week, how lively they were. Joona smiled up drunkenly at him and groaned as he slid farther inside her.

Fortunately, the whole miserable entanglement was concluded quickly. "God, I love you," she said. "This is what I want."

"What is?" He managed to find a space on the bunk that didn't squash the two of them together, even though he was in danger of falling off. When he looked back at her she was already asleep. She started snoring.

He found a thick T-shirt and put it on, then spent ages lying beside her, staring up at the cabin's invisible ceiling, unable to sleep. Nobody's fault, he kept telling himself, the circumstances were wrong, that's all. The cabin, the air-conditioning, the wine: an unfortunate combination. Tomorrow will be better.

The express terminus at Edinburgh Waverley had been dug underneath the original station, leaving the surface structure untouched. They hauled their luggage up the escalators to the big old sprawl of platforms underneath their arching glass-and-iron roofs, and found the local train over to Glasgow. Old-style induction tracks still threaded through the center of the city, passing below the ancient castle perched on top of its rocky pinnacle. Lawrence watched it slide past, fascinated by the massive stone blocks and wondering how the hell the builders had moved them into position without robots.

Once it was outside the suburbs, the train accelerated smoothly up to two hundred kilometers an hour. That was the fastest it could manage: the track in this part of Scotland was still using the same route that it had for centuries, laid down in the first decades of steam engines. It followed the contours of the rugged Highlands, curving too sharply to allow the train to reach its usual top speed. Even though there were no more farms, the district parliament had never obtained enough funds to straighten the route through the wild glens and restored woodlands. The cost of drilling new tunnels through hard Scottish rock and constructing viaducts over broad valleys was simply uneconomical given the volume of traffic. So anyone traveling the Highlands had almost the same journey as the Victorians who'd originally pioneered the route. There was even an old iron rail laid alongside the induction track, where enthusiasts kept a couple of old steam engines chugging up and down the coast, pulling early-twentieth-century first-class passenger coaches along behind them. A huge tourist attraction in the summer.

As they had arrived at Edinburgh station in the early morning, Lawrence was able to see the countryside in clear daylight. Queensland and some sections of Europe he'd seen were just as rugged, but nothing on any planet he'd been on was as green. With spring coming to the Northern Hemisphere, the trees were fresh with new leaves. Heavy rains had soaked the ground, giving the grass a healthy, vigorous start to the season. He took the window seat and pressed himself against it, smiling contentedly.

This section of the journey was the one that he enjoyed the most.

They reached Glasgow in the middle of the morning and changed trains for Fort William. If anything this journey was even slower. But the scenery made up for it. He couldn't believe the long, rugged glens, and the lochs with their dark mirror water that went on forever. Their splendor made him aware of how much humans belonged in this environment.

Joona sat beside him with her arm through his, pointing out various landmarks. Ever since she woke up she'd acted differently. Attentive and eager, as if their night together had allowed them to reach some new level of understanding and commitment. He didn't know what to make of it at all, though the affection was enjoyable. It made it seem as if they were more of a couple. Certainly anyone walking through the coach would assume so.